Faith,
You've said a lot, but you haven't shown anything.
Authentication from within.
The "Bible" can't authenticate itself since it is a collection of written works. Each author would have to speak for themselves.
As you can see from the list, the authors are not identified in most of the written works of the Bible. Aside from the prophets, I don't see an unknown author claiming to be an eyewitness.
If you feel that the authors of these works do identify themselves, please share the verse(s).
The Book of Mormon reads more like eyewitness accounts than the Gospels.
So what gives more authority or validity to unknown authors in the Christian Bible as opposed to anyone elses unknown authors?
"The average man does not know what to do with this life, yet wants another one which lasts forever." --Anatole France